These pre-moistened, individually packaged glass and surface wipes are the perfect solutions for cleaning classroom whiteboards, dry erase boards, or marker boards. Each towel measures 8in. x 10-1/2in. and are residue-free and lint-free. Wipes are safe to use on much other glass and hard surfaces such as mirrors, windows, monitors, display cases, tinted glass, windshields, fine lenses, and much more.